/in ves ti ba' shun/ n. (Portmanteau of "investigation" and "masturbation") An investigation with no hope of actually providing any answers, often to a question or case where the answer is already known, but not provable.

O.J. Simpson did not so much conduct an actual search for the "real killers" of Nicole Brown Simpson and Ron Goldman as he did an <i>investibation</i>.

President George W. Bush ordered an immediate <i>investibation</i> into the Valerie Plame leak, mainly to shut the public up.